Know the way.
MULTI-GNSS Support
Access multiple global navigation satellite systems (GPS and GALILEO) to track in more challenging environments than GPS alone.
Abc Sensors
Navigate every trail with ABC sensors, including an altimeter for elevation data, barometer to monitor weather and 3-axis electronic compass.
Birdseye Satellite Imagery
Download high-resolution photo-realistic maps directly to your device without an annual subscription. Easily find trails, pick stand locations, find parking, create waypoints and more.
Preloaded Topoactive Europe Maps
Preloaded TopoActive Europe maps show you summits, parks, coastlines, rivers, lakes and geographical points.
Wikiloc Trails
This preloaded app lets you easily download hiking, cycling and other Wikiloc trails shared by outdoor enthusiasts like you. Get a free 60-day Wikiloc Premium trial to try this and other exclusive features. Learn more.
Stay in touch by using inReach technology.
Two-Way Messaging
Exchange text messages with loved ones or friends, post to social media, or communicate from inReach to inReach in the field. Satellite subscription required.
Interactive Sos Alerts
In case of emergency, trigger an interactive SOS message to GEOS, the Garmin-powered International Emergency Response Coordination Centre (IERCC) with professional 24/7 global monitoring and response centre (active satellite subscription required).
Location Sharing
Track your location, and share it with those at home or out in the field. They’ll be able to see your progress or ping your device for your GPS location and more. Satellite subscription required
100% GLobal Iridium Satellite Network
Instead of relying on mobile coverage, now your messages, SOS alerts and tracking are transferred via the global Iridium satellite network. Satellite subscription required
Optional INREACH Weather
Use inReach connectivity to get detailed weather updates on GPSMAP 66i or a compatible device paired with the Garmin Explore Use inReach connectivity to get detailed weather updates on GPSMAP 66i or a compatible device paired with the Garmin Explore app. Request weather forecasts for your current location, waypoints or destinations on your route.
Active Weather
When paired with your compatible smartphone you can get real-time forecast information and live weather radar, so you’re always aware of the surrounding conditions.
Be adventure ready.
Built For Adventure
This handheld is built to military standards for thermal, shock and water performance (MIL-STD-810), and it’s even compatible with night vision goggles.
LED Flashlight
The GPSMAP 66 series helps you keep gear to a minimum with a built-in LED flashlight that can be used as a beacon to signal for help.
Garmin Explore APP
Plan, review and sync waypoints, routes and tracks by using the Garmin Explore mobile app and website. You can even review completed activities while still in the field.
Battery Life
Turn on Expedition mode, and get up to 200 hours of battery life while using inReach technology. In the default tracking mode, you get up to 35 hours of battery life, and your device will save your location every 10 minutes.